$OpenBSD: patch-src_libical_icaltz-util_c,v 1.7 2015/06/20 06:20:39 ajacoutot Exp $

https://github.com/libical/libical/commit/222badd14910f9beae5598f4c2a14be5c2afe25f

--- src/libical/icaltz-util.c.orig	Thu Oct  9 17:07:05 2014
+++ src/libical/icaltz-util.c	Fri Jun 19 08:48:09 2015
@@ -51,6 +51,10 @@
 # endif
 #endif
 
+#if defined(__OpenBSD__) && !defined(bswap_32)
+#define bswap_32 swap32
+#endif
+
 #ifdef _MSC_VER
 #if !defined(HAVE_BYTESWAP_H) && !defined(HAVE_SYS_ENDIAN_H) && !defined(HAVE_ENDIAN_H)
 #define bswap_16(x) (((x) << 8) & 0xff00) | (((x) >> 8 ) & 0xff)
